Gas-cock.



v1J.- MUELLER.

GAS COCK. APPLIGATION FILED JUNE 30, 1910.

WL-TLBS SE1-5.

Mmm@ Philip Magne? EHS/enter."

M 'bij awfmvmwm Patented Nov. 19, 1912.

lprovements in Gas-Cocks, ofwhich the fol@- ctizenfof the United PHILIP MUELLER, F DECATUR,

ILLINOIS, ASSIGNOR TOH. MUELLER MANUFACTUR- ING COMPANY, OF DIEICAJIUR, ILLINOIS, A CORPORATION OF ILLINOIS.

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` f specification of Letters raient,

Application mea June ao,191o.jffsena 1.1 rq. 569,505.

.To all whom at concer-1t:

Beit known that I, PHILIP catur, in the county v of Macon and State 'of Illinois, 'have invented new and useful Imlowmg 1s a specification..4

Thls lnvention relates to nnprovements in gas or other cocks,

in connection with. high pressure gas.

vAmong the'object-s of. my invention are cock sov constructedias to substantially eliminate the liability of gas leakage, preventv corrosion of the' in-' to provide-a simple. and' efcient valve struct-ure which4 is re, n1ovably ins'ertible within the body of the cock, in which the valveis' formed of lead: (metal, which -f the' valve is movable vbetween twoopposingV seats, the valve'having` its opposite faces the provision of a gas teriormechanlsm, and

or any other soft- 'plialole material r, or composition), andA in' formed to co-act with said seats.

To these and other endspthe nature of?? readily understood as the inv ention ishereinafter disclosed, said inven-l which will be tion consists in the'improved construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and

particularly pointed out in the appended claims.

vIn vthe accompanying drawings, in which similar, referencecharacters indicate similar parts 1n each of the v1ews,'F1gure 1 1s a 'longitudinal sectional view ofagas cock havin two openings anda singlegas inlet,

. said view illustrating the valve in closed position'an full lines and in openp'osition in dotted lines.v

being shown in section, way in which the valve islV secured to its stem. Figs. 3, 4, 5 and 6 are views illustratin g different ways in which the valve'may be secured to its stem.

Referring to the drawings. 10 designates a gas cock havinga gas inlet 11, andtwo gas' outlets 12, the inlet end of the cock 50.

serted into a cmg-screw threaded and adapted to be inmainv or other gas conduit. The-"inner end of the gas inlet. is formed to provide an angularly arranged. valve seat 18, and in direc opposition to said seat the o y portion of MUELLER, a States, residing at De-A and has particular,v relation 'to devices ofl this character for use,

lead, or similar soft v gage the valve seat in a manner enter an annular seat 21 formed Fig. 2 is aside elevationof the insertible valve construction, the valve and illustrating one under ordinary circumstances,

portions in the inlet the cock is provided,with

an integral screwfthrea'ded angular neck 24 adapted 'toreceive the threaded bushing 17, said bushing having a central screw threaded openingadapted to vreceive 'a threaded valvestem 14, the upper or 16 of which is formedto permitengage- Y vment .ofa suitable tool' for the purpose of imparting movement to the stem. The inner end of the stemlfi isfprovided with a valve preferably formed of pliable metal, or liber,

1 5, said valve being or-compo'sition, having these qualities. The valve is preferably the stem, the latter having any preferred conigurationfor retaining the valve in position. 'For instance, in yFig. 2 the valve is shown as castdirectly upon the screw threads of the stem; inFig. 3 thelower-end of the 'stem is formed circular in cross section and is provided with a radially extending rib, this caston the lower end of atenteanamiaiaia construction preventing rotative movement ofthe vvalve on the stem; in Figa the lower en d of'thefstem is shown assquare in cross section, while in Fig. '5 the lower end is shown as formed with a construction somef what similar to that shown in Fig. 3, but

having Va 'head '34 farniedthereon by means of which the valve is retained against axial movement relative to its stem. The valve preferably has i-ts` upper and lower faces beveled, the lower face being adapted to ento prevent, gas passage therethrough, while the opposite or upper face of the valve' is on the inner end of the bushing 17, this latter construction providing against gas leakage through the inner portion of the cock in whiclrthe parts generally have movement. ,While the screw threaded connection of the bushing.

and valve stem for-ms an eflicient closure, the closure is not good, when used in connectionV with gas of high pressure. By moving the lead valve to its seat in the recess 21to firmly engage the walls thereof, an actual gas tight device is provided, it being understood that the bushing is rendered gas tight with respect to its connection with the body por# tion when the cock is assembled, and it being understood that similar conditions are had with respect to the connections of the body conduit and the service pipe leading from the gas outlet.

` The valve seat 18'is arranged angularly adapted to withrespect to the plane of the outer end of the gas inlet and the body portion is recessed, as shown at 26, to rovide for the movement of the material o the valve when being tightly closed onto its seat.

The construction herein results in a number of advantages which Iare believed to be valuable. Attention is called to the fact that it provides for the use of ordinary commercial iron fittings; that the only structure additional to that of the body portion is removable as a unitary structure; that the only ortion of the cock in which provision cannot be initially made against gas leakage s (the screw threaded connection of stem and bushing) is rendered gas tight by the valve formed of a material which is soft and pli-l able, and that the entire device'provides against either gas obstruction or corrosion by reason of the few parts within the cock, the material of which these parts are made, and the particular ositions which are occupied by them. n addition it may be noted that inasmuch as the valve is cast upon the body of the stem, there is no liability of gas leakage on the periphery of the stem within the valve.

While I have described the best form of my invention now known to me, it is -of course evident that many modifications may be made in the specific structure without departing from the generic spirit of my invention. I desire to cover all such modifications in the annexed claims.

What I claim is,-

1. A gas-cock comprising a body portion having a gas inlet and a gas outlet, an angled valve seat at the inner end of the gas inlet, a valve structure removably inserted wit-hin said body portion perpendicular to said seat, said structure embodying a threadedl bushing,. a valve stem screw threaded within the bushing, a valve secured on and accurately tting the lower end of the stem and adapted to be seated on said seat, said valve being formed of a soft pliable material, said bushing formed with its inner end to provide an annular seat surrounding the screw threaded stem, and said valve having its upper face formed to enter said seat and form a gas tight closure of the threaded connection of the stem and bushing when the valve is opened, an outlet opening in line with `the inlet opening, and another outlet opening at right angles thereto.

2.' A gas cock comprising a body portion having a gas inlet and a gas outlet, an angled valve seat at the inner end of the gas inlet, a valve structure removably inserted within said body portion, perpendicular to said seat, said structure embodying a threaded bushing, a valve stem screwthreaded within the bushing, a valve secured on and accurately itting the lower end of the stem and adapted to be seated on said seat, said valve beingjormed Iof a soft pliable material, said bushing having its inner end to provide an annular sea-t surrounding the screw threaded stem, and said valve having its upper face formed to enter said seat an form a gas tight closure ot' the threaded connection of the stem and bushing when the valve is opened, an outlet opening in line with the inlet opening, and another outlet opening at right angles thereto, and a valve receiving recess adjacentsaid seat adapted to receive the valvedisk and allow it to entirely clear the Huid passageway.

3. A gas cock comprising a casing having an inlet and an outlet opening, a valve seat, an opening between the aforesaid openings, a stem passing into said casing on the outlet side of and perpendicular to said seat, an annular seat carried by the casing and surrounding the stem parallel to and in the same right line with said first-named seat, a valve disk of non-corrodible pliable material cast direct-ly on said stem and coperating with the first of said seats to close the cock, said stem being threaded substantially throughout its'length, and said valve disk cooperating with the second of. said seats to prevent the escape of gas around the stem when the cock is open, and a valve receiving recess adjacent said seat adapted to receive the valve disk and allow it to entirely clear the fluid passageway. i

In testimony whereof I have hereunto set my hand in presence of two subscribing wit-- nesses.

` PHILIP MUELLERI.

Witnesses:

W. R. GUSTIN, W. R. BIDDLE.

v s Copies of this patent may he obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

